Track simplified code block structure.

_scripts/generate.py

@@ -154,15 +154,7 @@ def render_list_item(element, acc):
 
 def render_code_block(element, acc):
     acc.append('<pre><code>')
-    for line in element.lines:
-        if isinstance(line, org_rw.org_rw.Text):
-            for tok in line.contents:
-                if not isinstance(tok, org_rw.org_rw.MarkerToken):
-                    acc.append(tok)
-        elif isinstance(line, dom.CodeBlock):
-            print(line.lines)
-        else:
-            print(type(line))
+    acc.append(element.lines)
     acc.append('</code></pre>')